1540070

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{449}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 3240000

約数和(自身を除く): 1699930

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 449, 490, 686, 898, 1715, 2245, 3143, 3430, 4490, 6286, 15715, 22001, 31430, 44002, 110005, 154007, 220010, 308014, 770035, 1540070]

約数ペア:

[(1, 1540070), (2, 770035), (5, 308014), (7, 220010), (10, 154007), (14, 110005), (35, 44002), (49, 31430), (70, 22001), (98, 15715), (245, 6286), (343, 4490), (449, 3430), (490, 3143), (686, 2245), (898, 1715)]